Energy confinement in the plasma of the T-10 during electron cyclotron heating
The energy confinement time and the local values of the electron thermal conductivity have been studied in the T-10 tokamak during electron cyclotron heating. The behavior of these properties as functions of the plasma parameters, the microwave power, and the profile of the microwave power was studied. A gyrotron system was capable of injecting a power P/sub R//sub F/ up to 1 MW with a pulse length approx. =100 ms into the plasma. The relationship between the energy confinement in the plasma during electron cyclotron heating and the profiles of the temperature, T/sub e/(r), the current density, j(r), and the pressure, p(r), was studied. A controllable change in the electron temperature profile T(r) was achieved by displacing the electron cyclotron resonance zone by means of a small change in the toroidal magnetic field near the fundamental value B/sub T/ = 3.0 T. The experimental data are explained under the assumption that there are ''limiting'' profiles in a tokamak, which are determined by the permissible density and pressure gradients.
- Research Organization:
- I. V. Kurchatov Institute of Atomic Energy, Moscow
- OSTI ID:
- 6489611
- Journal Information:
- Sov. J. Plasma Phys. (Engl. Transl.); (United States), Vol. 13:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
T-10 TOKAMAK
CONFINEMENT TIME
ECR HEATING
BALLOONING INSTABILITY
CYCLOTRON RESONANCE
ENERGY BALANCE
JOULE HEATING
KINK INSTABILITY
MICROWAVE HEATING
THERMAL CONDUCTIVITY
CLOSED PLASMA DEVICES
ELECTRIC HEATING
HEATING
HIGH-FREQUENCY HEATING
INSTABILITY
PHYSICAL PROPERTIES
PLASMA HEATING
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RESISTANCE HEATING
RESONANCE
THERMODYNAMIC PROPERTIES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production